Abstract base class for iterating all terms in a database. More...

#include <alltermslist.h>

Inheritance diagram for AllTermsList:

Collaboration diagram for AllTermsList:

Public Member Functions
virtual Xapian::termcount	get_approx_size () const
	Return approximate size of this termlist. More...

virtual std::string	get_termname () const =0
	Return the termname at the current position. More...

virtual Xapian::termcount	get_wdf () const
	Return the wdf for the term at the current position. More...

virtual Xapian::doccount	get_termfreq () const =0
	Return the term frequency for the term at the current position. More...

virtual TermList *	next ()=0
	Advance the current position to the next term in the termlist. More...

virtual TermList *	skip_to (const std::string &term)=0
	Skip forward to the specified term. More...

virtual bool	at_end () const =0
	Return true if the current position is past the last term in this list. More...

virtual Xapian::termcount	positionlist_count () const
	Return true if the current position is past the last term in this list. More...

virtual Xapian::PositionIterator	positionlist_begin () const
	Return a PositionIterator for the current position. More...

Public Member Functions inherited from Xapian::TermIterator::Internal
virtual	~Internal ()
	We have virtual methods and want to be able to delete derived classes using a pointer to the base class, so we need a virtual destructor. More...

virtual void	accumulate_stats (Xapian::Internal::ExpandStats &stats) const
	Collate weighting information for the current term. More...

virtual const std::vector< Xapian::termpos > *	get_vector_termpos () const
	Get pointer to vector<termpos> if that's the internal representation. More...

Public Member Functions inherited from Xapian::Internal::intrusive_base
	intrusive_base ()
	Construct with no references. More...

Protected Member Functions
	AllTermsList ()
	Only constructable as a base class for derived classes. More...

Protected Member Functions inherited from Xapian::TermIterator::Internal
	Internal ()
	Only constructable as a base class for derived classes. More...

Private Member Functions
void	operator= (const AllTermsList &)
	Don't allow assignment. More...

	AllTermsList (const AllTermsList &)
	Don't allow copying. More...

Additional Inherited Members
Public Attributes inherited from Xapian::TermIterator::Internal
size_t	shard_index = 0
	Which shard of a multidatabase this is from. More...

Public Attributes inherited from Xapian::Internal::intrusive_base
unsigned	_refs
	Reference count. More...

Detailed Description

Abstract base class for iterating all terms in a database.

Definition at line 27 of file alltermslist.h.

Constructor & Destructor Documentation

◆ AllTermsList() [1/2]

AllTermsList::AllTermsList ( const AllTermsList & )

private

Don't allow copying.

◆ AllTermsList() [2/2]

AllTermsList::AllTermsList ( )

inlineprotected

Only constructable as a base class for derived classes.

Definition at line 36 of file alltermslist.h.

References at_end(), get_approx_size(), get_termfreq(), get_termname(), get_wdf(), next(), positionlist_begin(), positionlist_count(), and skip_to().

Member Function Documentation

◆ at_end()

virtual bool AllTermsList::at_end ( ) const

pure virtual

Return true if the current position is past the last term in this list.

Implements Xapian::TermIterator::Internal.

Implemented in GlassSynonymTermList, ChertSynonymTermList, ChertAllTermsList, GlassAllTermsList, ChertSpellingWordsList, GlassSpellingWordsList, ChertMetadataTermList, GlassMetadataTermList, InMemoryAllTermsList, and MultiAllTermsList.

Referenced by AllTermsList().

◆ get_approx_size()

Xapian::termcount AllTermsList::get_approx_size ( ) const

virtual

Return approximate size of this termlist.

Implements Xapian::TermIterator::Internal.

Definition at line 32 of file alltermslist.cc.

References Assert.

Referenced by AllTermsList().

◆ get_termfreq()

virtual Xapian::doccount AllTermsList::get_termfreq ( ) const

pure virtual

Return the term frequency for the term at the current position.

Implements Xapian::TermIterator::Internal.

Implemented in GlassSynonymTermList, ChertSynonymTermList, ChertAllTermsList, GlassAllTermsList, ChertSpellingWordsList, GlassSpellingWordsList, ChertMetadataTermList, GlassMetadataTermList, InMemoryAllTermsList, and MultiAllTermsList.

Referenced by AllTermsList().

◆ get_termname()

virtual std::string AllTermsList::get_termname ( ) const

pure virtual

Return the termname at the current position.

Implements Xapian::TermIterator::Internal.

Implemented in GlassSynonymTermList, ChertSynonymTermList, ChertAllTermsList, GlassAllTermsList, ChertSpellingWordsList, GlassSpellingWordsList, ChertMetadataTermList, GlassMetadataTermList, InMemoryAllTermsList, and MultiAllTermsList.

Referenced by AllTermsList().

◆ get_wdf()

Xapian::termcount AllTermsList::get_wdf ( ) const

virtual

Return the wdf for the term at the current position.

This isn't meaningful for an AllTermsList, and will throw Xapian::InvalidOperationError if called.

Implements Xapian::TermIterator::Internal.

Definition at line 40 of file alltermslist.cc.

Referenced by AllTermsList().

◆ next()

virtual TermList* AllTermsList::next ( )

pure virtual

Advance the current position to the next term in the termlist.

Implements Xapian::TermIterator::Internal.

Implemented in GlassSynonymTermList, ChertSynonymTermList, ChertAllTermsList, GlassAllTermsList, ChertSpellingWordsList, GlassSpellingWordsList, ChertMetadataTermList, GlassMetadataTermList, InMemoryAllTermsList, and MultiAllTermsList.

Referenced by AllTermsList().

◆ operator=()

void AllTermsList::operator= ( const AllTermsList & )

private

Don't allow assignment.

◆ positionlist_begin()

Xapian::PositionIterator AllTermsList::positionlist_begin ( ) const

virtual

Return a PositionIterator for the current position.

This isn't meaningful for an AllTermsList, and will throw Xapian::InvalidOperationError if called.

Implements Xapian::TermIterator::Internal.

Definition at line 52 of file alltermslist.cc.

Referenced by AllTermsList().

◆ positionlist_count()

Xapian::termcount AllTermsList::positionlist_count ( ) const

virtual

Return true if the current position is past the last term in this list.

This isn't meaningful for an AllTermsList, and will throw Xapian::InvalidOperationError if called.

Implements Xapian::TermIterator::Internal.

Definition at line 46 of file alltermslist.cc.

Referenced by AllTermsList().

◆ skip_to()

virtual TermList* AllTermsList::skip_to ( const std::string & term )

pure virtual

Skip forward to the specified term.

If the specified term isn't in the list, position ourselves on the first term after term (or at_end() if no terms after term exist).

Implements Xapian::TermIterator::Internal.

Implemented in GlassSynonymTermList, ChertSynonymTermList, ChertAllTermsList, GlassAllTermsList, ChertSpellingWordsList, GlassSpellingWordsList, ChertMetadataTermList, GlassMetadataTermList, MultiAllTermsList, and InMemoryAllTermsList.

Referenced by AllTermsList().

The documentation for this class was generated from the following files:

backends/alltermslist.h
backends/alltermslist.cc

Public Member Functions

Protected Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AllTermsList() [1/2]

◆ AllTermsList() [2/2]

Member Function Documentation

◆ at_end()

◆ get_approx_size()

◆ get_termfreq()

◆ get_termname()

◆ get_wdf()

◆ next()

◆ operator=()

◆ positionlist_begin()

◆ positionlist_count()

◆ skip_to()